CA2084890C - Systeme adaptable de regulation du debit d'un filtre, et methode connexe - Google Patents

Systeme adaptable de regulation du debit d'un filtre, et methode connexe Download PDF

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Publication number
CA2084890C
CA2084890C CA002084890A CA2084890A CA2084890C CA 2084890 C CA2084890 C CA 2084890C CA 002084890 A CA002084890 A CA 002084890A CA 2084890 A CA2084890 A CA 2084890A CA 2084890 C CA2084890 C CA 2084890C
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CA
Canada
Prior art keywords
fluid
filter
filtrate
flow
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002084890A
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English (en)
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CA2084890A1 (fr
Inventor
Paul R. Prince
William D. Callaway
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Baxter International Inc
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Baxter International Inc
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Publication date
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Publication of CA2084890A1 publication Critical patent/CA2084890A1/fr
Application granted granted Critical
Publication of CA2084890C publication Critical patent/CA2084890C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/26—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes and internal elements which are moving
    • A61M1/262—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes and internal elements which are moving rotating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3403—Regulation parameters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3403—Regulation parameters
    • A61M1/341—Regulation parameters by measuring the filtrate rate or volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/22—Controlling or regulating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Water Supply & Treatment (AREA)
  • Urology & Nephrology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • External Artificial Organs (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

Un système et un procédé de régulation adaptative d'écoulement de concentré dans un filtre comprennent un système filtrant (12), un système de pompage (14) entraînant un fluide d'alimentation, un concentré et un filtrat s'écoulant à travers le système filtrant (12) ainsi qu'un système de régulation d'écoulement (18) régulant le système de pompage (14) afin de maintenir des vitesses d'écoulement de filtrat optimales ou des vitesses d'écoulement d'alimentation minimales sur une surface de régulation (102) dans un espace tridimensionnel où sont enregistrés une pression transmembrane - une vitesse de fluide d'alimentation - une vitesse d'écoulement de filtrat. On utilise des données ponctuelles fonctionnelles de détection réelles afin de localiser la surface de régulation (102) de manière à assurer une vitesse d'écoulement de filtrat optimale ou une vitesse d'écoulement d'alimentation réduite au minimum auquel le blocage réversible de la membrane a commencé à se rpoduire sans blocage ou bouchage irréversible. On utilise avantageusement le système afin de réguler et de maximiser l'écoulement de de plasma dans un système de plasmaphérèse ou afin de réduire au minimum la vitesse à laquelle le sang est prélevé sur un donneur et introduit dans le système tout en parvenant à obtenir une vitesse fixe d'écoulement de plasma.
CA002084890A 1990-07-10 1991-07-09 Systeme adaptable de regulation du debit d'un filtre, et methode connexe Expired - Lifetime CA2084890C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/551,598 US5069792A (en) 1990-07-10 1990-07-10 Adaptive filter flow control system and method
US551,598 1990-07-10
PCT/US1991/004828 WO1992000769A1 (fr) 1990-07-10 1991-07-09 Systeme et procede de regulation adaptative d'ecoulement dans un filtre

Publications (2)

Publication Number Publication Date
CA2084890A1 CA2084890A1 (fr) 1992-01-11
CA2084890C true CA2084890C (fr) 2000-10-03

Family

ID=24201922

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002084890A Expired - Lifetime CA2084890C (fr) 1990-07-10 1991-07-09 Systeme adaptable de regulation du debit d'un filtre, et methode connexe

Country Status (6)

Country Link
US (1) US5069792A (fr)
EP (1) EP0538385B1 (fr)
JP (1) JPH05508584A (fr)
CA (1) CA2084890C (fr)
DE (1) DE69119420T2 (fr)
WO (1) WO1992000769A1 (fr)

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US5804079A (en) 1991-12-23 1998-09-08 Baxter International Inc. Systems and methods for reducing the number of leukocytes in cellular products like platelets harvested for therapeutic purposes
US5639382A (en) * 1991-12-23 1997-06-17 Baxter International Inc. Systems and methods for deriving recommended storage parameters for collected blood components
US5730883A (en) 1991-12-23 1998-03-24 Baxter International Inc. Blood processing systems and methods using apparent hematocrit as a process control parameter
US5676841A (en) * 1991-12-23 1997-10-14 Baxter International Inc. Blood processing systems and methods which monitor citrate return to the donor
US5681273A (en) * 1991-12-23 1997-10-28 Baxter International Inc. Systems and methods for predicting blood processing parameters
US6007725A (en) 1991-12-23 1999-12-28 Baxter International Inc. Systems and methods for on line collection of cellular blood components that assure donor comfort
US5320760A (en) * 1992-12-07 1994-06-14 E. I. Du Pont De Nemours And Company Method of determining filter pluggage by measuring pressures
FR2704432B1 (fr) * 1993-04-27 1995-06-23 Hospal Ind Dispositif d'injection de liquide dans un circuit extracorporel de sang.
US5759413A (en) 1995-06-07 1998-06-02 Baxter International Inc. Systems and method for estimating platelet counts using a spleen mobilization function
US6251284B1 (en) 1995-08-09 2001-06-26 Baxter International Inc. Systems and methods which obtain a uniform targeted volume of concentrated red blood cells in diverse donor populations
US6527957B1 (en) 1995-08-09 2003-03-04 Baxter International Inc. Methods for separating, collecting and storing red blood cells
US5762791A (en) * 1995-08-09 1998-06-09 Baxter International Inc. Systems for separating high hematocrit red blood cell concentrations
US5964724A (en) * 1996-01-31 1999-10-12 Medtronic Electromedics, Inc. Apparatus and method for blood separation
TW391881B (en) 1996-09-25 2000-06-01 Baxter Int Method and apparatus for filtering suspensions of medical and biological fluids or the like
US5954971A (en) * 1997-01-07 1999-09-21 Haemonetics Corporation Pumped-filter blood-processing apparatus and methods
US6041801A (en) * 1998-07-01 2000-03-28 Deka Products Limited Partnership System and method for measuring when fluid has stopped flowing within a line
US6343614B1 (en) * 1998-07-01 2002-02-05 Deka Products Limited Partnership System for measuring change in fluid flow rate within a line
US6695803B1 (en) 1998-10-16 2004-02-24 Mission Medical, Inc. Blood processing system
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US6709412B2 (en) * 1999-09-03 2004-03-23 Baxter International Inc. Blood processing systems and methods that employ an in-line leukofilter mounted in a restraining fixture
US7169352B1 (en) 1999-12-22 2007-01-30 Gambro, Inc. Extracorporeal blood processing methods and apparatus
US6899691B2 (en) 1999-12-22 2005-05-31 Gambro Inc. Extracorporeal blood processing methods and apparatus
US7608053B2 (en) * 2000-01-10 2009-10-27 Caridianbct, Inc. Extracorporeal blood processing methods with return-flow alarm
AU2002243033B2 (en) * 2001-04-13 2006-02-02 Asahi Kasei Medical Co., Ltd Liquid filtering method and filtering system
EP1519763A1 (fr) * 2002-06-27 2005-04-06 Koninklijke Philips Electronics N.V. Procede de calcul de facteur de colmatage de filtre et systeme pour lit
JP4373684B2 (ja) * 2003-02-19 2009-11-25 株式会社フィリップスエレクトロニクスジャパン フィルタ目詰まり状況監視装置およびベッドサイドシステム
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US7410587B2 (en) * 2004-08-03 2008-08-12 Scilog, Inc. Liquid handling for filtration and preparative chromatography
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US7895084B2 (en) * 2008-05-15 2011-02-22 Doapp, Inc. Method and system for providing purchasing on a wireless device
US8700221B2 (en) 2010-12-30 2014-04-15 Fluid Handling Llc Method and apparatus for pump control using varying equivalent system characteristic curve, AKA an adaptive control curve
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US9938970B2 (en) * 2011-12-16 2018-04-10 Fluid Handling Llc Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring
CA2856447C (fr) 2011-12-16 2019-06-04 Fluid Handling Llc Procedes et appareil de commande lineaire dynamique pour la commande d'une pompe a vitesse variable
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CN107617337B (zh) * 2016-07-14 2024-07-05 宁波乐惠国际工程装备股份有限公司 一种错流过滤控制方法、错流过滤装置和错流过滤系统
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CN109611687B (zh) * 2018-12-03 2020-05-22 苏州市洋基机电工程有限公司 一种管制液体自动管控系统
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Also Published As

Publication number Publication date
WO1992000769A1 (fr) 1992-01-23
JPH05508584A (ja) 1993-12-02
DE69119420D1 (de) 1996-06-13
CA2084890A1 (fr) 1992-01-11
DE69119420T2 (de) 1996-12-05
EP0538385A1 (fr) 1993-04-28
US5069792A (en) 1991-12-03
EP0538385B1 (fr) 1996-05-08

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